William huston



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'WILLIAM Heeren, or WILMINGTON, DELAWARE, .Assiettes To HiMsnLr AND H. N. Wicunnsuiu, or sintetica.

Letters Patent IVO. 61,339, dated January 2 2, 1857i antefatccl Jrmztmg/ I9, 1867.

IMPROVEMENT IN APPARATUS FOR OBTAINING AND APPLYING MOTIVE POWER.

itin Stlnhirlc Infant tu in time teints tmt mit mittig gaat tf tige simu TO ALL WHOMIT MAY GONCERN:

Be it known that I, IVILLIAM HUSTON, of Wilmington, Delaware, have invented an Improved Apparatus for Obtaining and Applying Motive Power; and I do hereby declare the following to be a-fufll, clear, and exact description of the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon. V n

My invention consists of Acertain. eccentric disks, each connected to a shaft, and having a recess, in which fits a portion of a block or piston, the Whole being constructed and arranged as fully described hereafter, so that steam or other fluid admitted into 'the said recess shall so act on the'piston as to impart a continuous rotary motion to the disks and their shafts.

In order to enable others skilled in the art toA make and use my invention, I will now'proceed to describe its construction and operation. On reference to the accompanying drawing which forms a part of this speciication i Figure l is a sectional elevation of my improved apparatus.

Figure 2, a plan View, `partly insection.

Figure 3, a vertical section on the line L2, iig. l, loo'king in the direction of the arrow 1.

Figures 4 and 5, the same as iig. 3, showing the parts in diifercnt positions. Figures 6 and 7, vertical sections on the line 3-4, fig. 1, looking in the 'direction of the arrow 1, and showing the parts in ditferent positions.I

Figure 8, a sectional plan on the line 5-6, tig. 5.

Figure 9, a vertical section on the line `7-8, hg. I, looking'in the direction of the arrow.

Figure I0, a detached View of part of the apparatus; andi Figure 11, a perspective view'of the piston.

Similar letters refer to similar parts throughout the severalriensl. Y

A is a hollow cylindrical casing, the headsor ends B B of which are connected together at the top by a cross-piece, C, the `whole being secured to a suitable foundation. In the head B turns a shaft, D, to the inner cud of which is secured a metal disk, F, the opposite faces of the latter being planed so as to fit closely to the face of the head B, and tothe face of a'similar disk, F, which is` secured to a shaft, D, turning in the head B.

The two shafts D D are so situated in respect toeach other, that While the axis of the shaft D vcoincides with'a I line n: z, (fig. 2,) that of the shaft D coincides with a parallel line :v z on the same horizontal plane as the line z w; the pcripheries of thc two disks must therefore be eccentric in respect to each other, as shown ings. 6, 7, and 8.v In the disk F is oblong chamber X, and in the disk Fis'a similar chamber, fc, which is Yalways at right angles to the chamber X, and into each chamber projects one-half of a h olloW cubical block or piston, which slides in both chambers, as fully described hereafter. In the shaft D is an opening, s, which communicates with the interior of. the piston G, and with the external air, for a purpose described hereafter. In the disk F are two openings, a u, the opening a communicating with the chamber X on one-side of the piston, and theopening a `with the same chamberon the opposite side of the piston, and *both communicating, during a portion of the revolution of the disk, with two curved recesses, Z1 in the inner face of the head B, (fig. 9.) In the disk F are openings, c c', which communicate (as in the former case) each with one end of the chamber X, and, during ya. portion of the revolution of the disk, With curved recesses, d tZ, in the inner face of the head B', (thcgsa'id recesses being shown in fig. 1, and in dotted'lines, iigs. 6 and 7.) In the face of the cross-piece C are four ports, c c', fj, which are covered by a valve-chest, H, and in the latter, over the ports e, f, c', slides the valve I. With the ports f and communicatethe steam pipe il', and exhaust pipe J", and in the crosspiece C, and in the heads B and B are two channels, g and g, the former communicating with the port e, and with the recesses t and el', and the latter with the port e, and with the recesses Z1 and cl. The communication between the steam chest and exhaust pipe J, throughV the portf, is always open, andl the 'valve I is so constructed that 'by adjusting it within the chest, the steam may be directed from the port f into either of the ports e or e. Owing'to the arrangement of the piston within two chambers situated at right angles to each other as described, four narrow steam recesses are formed, 4one at cach side of the piston between the latter and the adjacent end of one of the chambers X X, each recess being equal in Width to one-half the entire Width of the piston, `so that the steam, when admitted to either of the recesses, willact on only one'fhalf of the face of lthe piston, theL other half of the said face being in contact with one of the sides of the chamber in the opposite disk. The parts of the machine beingin the position shown 'in Afigs. 1 and 3, and steam being introduced into the pipe J, and into the casing A round the disks, the operation of the engine will be as follows: Ilhe steam will.

pass from the pipe J through the ports f and c and channel ig', t'o thercurved recesses Zz d. As the openings c and c in the disk F are opposite that portion of the face of the head B' between the ends offthc recesses d and cul', the escape of steam from the recess oZ is prevented; after reaching the recess b', however, the

steam'passes through the openinga into the chamber X, beneath the-piston, (iig. 3.) As the steam pi-,csses against the lower face of the piston, the latteris moved towards the top Yof the chamber X, and that portion of the piston in the chamber z is caused to bear against the upper side "of thesaid chamber, near one end of thc latter, and will thus impart a rotary motionto the disk F on its axis rc', in the same manner as if a force was applied to a pin on the face ofthis disk F at w, (iig. When the disks have been turned slightly, the openings c and c of the disk F will be brought opposite the ends of the recesses d and d', (tig. 6,) and the steam admitted to the former recess from the channel g Awill pass through the opening c, into the upper portion of the chamber X, and will press against the side t of that portion of thepiston G which projects into this chamber, figs. 4 and 6. As, when the steam is admitted to the chamber x, the piston G isfabove the-centree: of the chamber rX in the disk F, it will bc apparent that the pressure ofthe s team against the piston in the direction of the arrow 2, (igs. fand 6,) will turn the disk in the direction of its arrow. When one-fourth of a revolution has been completed, the openings a a in the disk F will be between the ends of the recesses b b', and the steam vwill be cut cif from the chamber X, (as shown in figs. 5, 7, and 8,) although it still passes into the chamber X, and presses on the upper side, t, ot' the piston. As the revolution of the dish continuos, however, the openings a and a' willtbe brought opposite the ends of the recesses b and b', the steam from the recess b will be admitted through the opening d t'o theV lower part of the. chamber X, and will force the piston towards the'upper end of this chamber, while the steam in this portion of the chamber escapes through the opening ai. recess Ig, channel g, and port e, into the valve chest, and will pass through the port f and escape pipoJ. The piston is now in such a position, near one end of the chamber X; that, by :its upward motion'in theichamber X, it will force the disk F still further round in the direction of itsy arrow; As, during the movement just described, the opening c is brought opposite the recess d', and the piston is moved towards this opening, the steam will escape through this opening from the lower part of the chamber X into the recess d', and will pass through the channel g and port e, into the'steam chest, and from the latter through the port to the escape pipe J. 1t will be seen without further description that the steam is always pressing against one, and generally against two -sides of the piston, and that this pressure is exerted when thcpiston is at one side of the centre of one or both of the chambers, so that a rotary motion will be'imparted to the disk in which such chamber is situated, the motion of one disk being communicated to the other, and the constantalteration of the position of the piston, and the corresponding change ofthe pressure from one side to the other of the same, causing a. continuous `simultaneous revolution of both the disks and their shafts. When it isdesired to reverse the motion of the disks and their shafts, the valve I is brought over the port e, so that thesteam will enter the chambers through the recesses b and d', and escape through the recesses b and d; it will be apparent, however, that this valve chest may be dispensed with, where it is not desired to reverse the engine, the steam being conducted by pipes directly to the openings b and b', and from the openings d and d. Steam which may iind its way into the interior of tbe piston Gr, will escape through the opening s, any pressure within the piston which would tend to separate the two disk-s being thus prevented. Any tendency of the steam to escape from the chambers XX is eifectually prevented by surrounding the disks with a body of steam at the same pressure asthat within. the chambers; the steam in the outer casing, however, may be replaced by oil, water, or other iluid, and, should it be deemed advisable, theicasing itself may be dispensed with. By 'means of adjustable plates secured within the recesses band d, the length of the latter may be varied at pleasure, so as to cut o` the steam from the chambers at any desired point of the revolution of the disk, .the steam admitted to the chamber continuing to act in consequence of its expansion. Although -Ivhave alluded to steam only as being used for d1.ving the engine, compressed air, water, or other suitable fluid, may be employed.

Without confining myself to the precise arrangement and construction of parts herein described, I claim as my invention, and desire to secure by Letters ,'Patent- 1. The combination of .the disk F and its chamber X, and the disk F 'and its chamber X, with the piston G, the whole being arranged for joint action, snb'stantiallyas and for the purpose herein set forth.

2. In combination withvtheabove, I claim the heads B and B', with their recesses and openings, arranged substantially as described. l y

3. The combination of the said disks, pistomand heads with a casing, A.

In testimony whereof I have signed my naine to this specification in the presence of two subscribing witnesses.

WILLIAM HUs'roN.-

Witnesses: t

Cuantas E. Fosrnn, JOHN WHITE. 

